BrainKing Chat Box, displayed at the top of every BrainKing page (if it is turned on), is a great opportunity to send short messages to other players who are using the chat box as well, without a need to interrupt the game playing process. The basic version is available to all registered users, but only paying members have the access to all chat box features, including fast automatic refresh, smiley popup window, many options to set/change etc.
(hide) If you want to play a game with an opponent of a similar level, you can define a required BKR range for a new game invitation. Then nobody with a BKR outside this range will be able to see/accept it. (Katechka) (show all tips)